A gamma-ray burst detected by NASA's Swift satellite has smashed the previous distance record for the most powerful explosions in the Universe. Researchers are calling it 'an incredible find' and a 'true blast from the past.'

NASA spacecraft are measuring record-high levels of cosmic rays--a side-effect of the deepest solar minimum in nearly a century. This development could have implications for the amount of shielding Astronautsneed to take when they explore deep space.

NASA is planning a daring new mission to investigate the Universe's favorite way of making things explode. Unlocking the secrets of "magnetic reconnection" could help alleviate the energy crisis on Earth.

Crystal balls rarely have anything to do with science, but soon NASA researchers will be using a set of four to examine one of the last, untested portions of Einstein's General Theory of Relativity. The spheres are heading for Earth orbit on board the Gravity Probe B mission in 2002.

The case for ancient life on Mars looks better than ever after scientists announced last week that they had discovered magnetic crystals inside a Martian meteorite -- crystals that, here on Earth, are produced only by microscopic life forms.